An evaluation of extraction techniques for the fractionation of copper and lead in model sediment systems

作者: R Guy

DOI: 10.1016/0043-1354(78)90190-2

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摘要: Abstract Model sediments were used to evaluate four extraction methods for fractionation of metals in sediment: 1. dilute HNO 3 (total specifically-adsorbed metal); 2. 1 M NH 4 Cl (ion-exchangeable); 3. H 2 O (organic); 4. density separation using bromoform. The studies indicated that could not remove all the lead from MnO , intercomponent interferences prevented 100% removal by and Cl, separations separate oxide coatings clay minerals.

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